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Green Easy Flow Sponge Filter (coarse)

Regular price: $12.99
Sale price: $12.99
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Unit price: per

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Air collar makes smaller bubbles for improved performance
Easy Flow accessory increases water circulation
Coarse, anti-clogging sponge

Sponge filters offer reliability and hassle-free operation. With no moving parts, all you need is an air pump with some airline tubing, and you've got a filter that is fully contained within your aquarium. Sponge filters are completely reusable, don't need any replacement cartridges, and last for several years. Plus, they are gentle enough for betta fish, baby fry, shrimp, and other slow-moving species. Trusted by fish farms and wholesalers, they are an excellent choice for aquarium filtration that you can set and forget.

Aquarium Co-Op Filter Aquarium Co-Op Coarse Sponge Filter with Easy Flow Kit

Increase Circulation in Your Aquarium

The Easy Flow Sponge Filter creates a directional current in your aquarium. This is good for delivering nutrients to plants and sweeping debris back to the filter. It also benefits fish by giving them something to swim against.

Adjustable Height for Different Tank Sizes

The Easy Flow curved uplift tube has an adjustable height, allowing you to use it for both small and big tanks. Use our sizing chart to find the perfect sponge filter for your aquarium. Ideally, the tube opening should sit 1/3 out of the water and 2/3 in the water.

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No Air Stone Needed

Our air collar replaces the need for an air stone. Uniform bubbles with the airline tubing on the outside delivers better even flow, which increases the flow rate and reduces noise. No more glug, glug, glug sound. Use a small pipe brush or toothbrush to clean the collar during monthly maintenance.

Blends in With Plants

The green color blends in with plants and helps hide any green algae on the tubing. But it's still transparent enough to see the uniform flow and ensure your filter is working properly at a glance.

Extra Heavy Base

Our extra heavy weighted base helps the sponge filter sinks right away. Give the sponge a squeeze when you put it in the water to remove any extra air. The heavy base also helps it stay in place when fish might try and move it.

Coarse Sponge

Our coarse sponge allows for extra time between cleaning. It's also able to hold more debris. This is a great place for baby shrimp and fry to forage for food. Baby shrimp even use the sponge as a cave system to hide from fish that may try to eat them while growing. We recommend servicing sponge filters once a month.

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Cleaning Is Easy

We recommend cleaning your sponge filter once a month. Removing the debris from the sponge ensures it won't clog up unexpectedly. While our sponge filters can often go many months between service, it's a best practice to service monthly. Also, clean the air collar with a small pipe brush or toothbrush to remove any debris buildup.

Bonus Tip: Pour the brown water on your houseplants to make them very happy.

Love This Product In Black!

I have run the green coarse sponges for years and have really enjoyed them. I feel that the black version looks great on tanks with black backgrounds. The included Easy flow kit makes the filters very quiet as well.

Great Product! Glad they came out with the Fine Sponge as well!

I have run the green coarse sponges for years and have really enjoyed them. I feel that the black version looks great on tanks with black backgrounds. I have used the fine sponges in the place of box filter in some of my mulmier tanks. The included Easy flow kit makes the filters very quiet as well.

Black components, Fine sponge, Folks are going to love it!!

I received my new Black Easy Flow Sponge filters today with the fine sponge. Immediately took one out rinsed it off and set it up in a tank. Folks are going to love these, first off I liked the green, blended into a tank nicely. But this black is scrumptious to say the least, very nice. As for the fine sponge, I know many have asked for it especially for shrimp and fry or small fish tanks. You all will really like this sponge, it's not cheap fine sponge it's really nice fine sponge. I kind of expect the first run of these to sell out, so. . . get yours while they are in stock!!!

The best

These are by far the best sponge filters around, I’ve had several others and these blow them away I have them in my 10G and my 55G

Great but needs more versatility with tube heights

After a huge aqua clear overflow that ruined the floor I chucked my HOB filters and pulled out the old fine sponge filters with airstones built in but needed more filtration & flow. So I caved and got a large for my 20 long and a Medium for my 10g quarentine tank. OH MY GOSH AM I GLAD I FINALLY GOT THESE FILTERS!

They’re so much quieter & the flow is INSANE compared to the air stones! The flow is just as good as my previous aquaclears and no worries about them spilling over!

The only thing I’d change is having different size tubes so we can mix and match sizes so we can use any size filter in any size tank because cutting the tubes down without a dremel is a PAIN

So quiet

We are new to the fish world and inherited our tank from a friend when he got a salt water tank. I THOUGHT I would love the sound of running water all the time from our previous hang on back filter. But after a couple of months it started to annoy me at night. We also live in an area with a lot of power outages. And were always concerned about the pump having to prime while we were away during the day. We decided to switch to the sponge filter for those two reasons. We got it installed yesterday and I've got to say the silence is beautiful. The fact it has it's own battery backup for power outages really sets my mind at ease. Thank you aquarium coop for your tutorial and information videos. I've learned so much from them and feel like I can successfully be a fish parent.

Best sponge filler!!

Doesn’t get clogged and stops working after a week like the amazon one’s super simple to set with nice flow and affordable

Really elevated my tank circulation

I love this filter. It has done wonders for my tank and keeps the water moving without overwhelming my fish. Highly recommend this to bring movement and oxygen into the tank.

Wayyy Easy Flow

I have been a fan follower and customer for years now. I’ve Always been 100% satisfied. I had to write a review for this sponge filter. From set up to placement only took a couple of minutes. My shrimp were immediately like “Heyy check this out!” LoL
Thank you Aquarium Co-Op team for all the help. You answered my product question email expeditiously so I could place my order. You’ve provided countless videos. I’ve watched most. I stumbled across Cory years ago. He bridged my love of plants and being an Aquarist.

Minor Noise Complaints

I used to use the sponge filter from Hikari which works fine and just wanted to give a try on this one. It is unexpected that this sponge filter slightly nosier than my Hikari sponge filter.

Hikari filter doesn’t need the air stone to make the bubble smaller and reduce the bubble noise. But this product making minor buzzing/crackly noise from the air collar. I can make the noise less by taking off the pipe on the top, just using the air collar.

Noise itself is minor issue, I don’t notice during the day time while other noise, TV, music or people talking are present. Only time it bothers me just at night when I’m alone reading/studying. Wish I have the choice to buy without airflow kit, but overall very satisfied my purchase. Additionally I’m proud of myself that I invested on small business rather than franchises or Amazon😉